4-Chloro-3-hydroxybenzoic Acid Methyl Ester CAS 166272-81-7
Purity 97%+In StockPharmaceutical Standards
| CAS No. | 166272-81-7 |
| Molecular Formula | C8H7ClO3 |
| Molecular Weight | 186.59 g/mol |
| Category | Pharmaceutical Standards / API Standards |
| Availability | In Stock |
Chemical Structure
Description
CATO supplies 4-Chloro-3-hydroxybenzoic Acid Methyl Ester (CAS 166272-81-7), a pharmaceutical standards reference standard manufactured under ISO 17034 accreditation. Molecular formula: C8H7ClO3. Molecular weight: 186.59 g/mol. Batch-specific COA and technical support are available on request.
Physical & Chemical Properties
| Molecular Formula | C8H7ClO3 |
| Molecular Weight | 186.59 g/mol |
| Appearance | Off-white to pale yellow crystalline powder. (slight halide-like odor) |
| Purity | 97%+ |
| Storage | Store at 2-8°C, keep sealed and dry, keep tightly closed to prevent evaporation |
| Solubility (reference) | Soluble in methanol, ethanol, DMSO |
| Stability | May oxidize slowly on prolonged air exposure; Hygroscopic; reseal immediately after opening; Contains ester bond; hydrolyzes under strong alkaline conditions |
| Degree of Unsaturation (DBE) | 5.0 |
| UV Absorption | UV-absorbing |
| Structural Features | Aromatic ring present |
| CAS Registry Year (est.) | 2004 |
| Halogen Content | Cl-containing |
Related Chloro Standards
- 4-Chloro-2-(hydroxymethyl)benzoic acid (CAS 100448-59-7)
- Methyl 2-Chloro-4-hydroxybenzoate (CAS 104253-44-3)
- 3-Chloro-2,4-dihydroxy-6-methylbenzaldehyde (CAS 106325-72-8)
- 2-Chloro-4-(hydroxymethyl)benzoic acid (CAS 1071989-48-4)
- Methyl 2-chloro-3-hydroxybenzoate (CAS 1125632-11-2)
- 2-Chloro-6-hydroxy-4-methoxybenzaldehyde (CAS 116475-68-4)
- 2-Chloro-3-(hydroxymethyl)benzoic acid (CAS 1187238-13-6)
- 4-Chloro-3-(hydroxymethyl)benzoic acid (CAS 1187238-15-8)
Recommended Standards
- 3-Chloro-4-(hydroxymethyl)-benzoic Acid (CAS 1594779-14-2)
- Methyl 2-chloro-6-hydroxybenzoate (CAS 176750-70-2)
- 5-Chloro-4-hydroxy-2-methylbenzoic acid (CAS 1555855-22-5)
- 5-Fluoro-2,3-dihydro-1H-inden-2-amine (CAS 2340-06-9)
- 2-(Bromomethyl)-6-(difluoromethyl)-3-methoxypyridine-4-acetonitrile (CAS 1361708-66-8)
- N-(2-(1-Hydroxyheptadecyl)-4-oxoquinazolin-3(4H)-yl)acetamide (CAS 917764-70-6)
- Levocabastine Hydrochloride EP Impurity J (CAS CATO-C4X-228918)
- 4-Benzyl-2,3-dimethylisoxazol-5(2H)-one (CAS 141238-84-8)
- 4-hydroxy-1-methyl-1H-indazole-6-carboxylic acid (CAS 1556216-36-4)
- Peptide Impurity 81 TFA (CAS CATO-CPTD788581)
Why CATO?
- ISO 17034 accredited reference material producer (CNAS + ANAB dual accreditation)
- 130,000+ catalog items in stock, COA supplied with every batch
- Worldwide shipping with full export documentation (HS code guidance available)
- Technical support: +86 13829788188 / jacky.chen@cato-chem.com